Rebooting the hub and doing a z-wave repair is a temporary solution for about an hour.
Hubs caught up in this issue appears to be stuck in a loop. When stuck in this loop some devices are cannot be controlled (esp locks and switches). Infact SmartLocks will show the status as unknown after a while for these locks.
A side effect of the loop is that the remote reboot command from the IDE may not work (you can verify by looking at the hub log events), only a physical restart seems to helps. Hopefully when the root issue in the platform is fixed the hub will stop the loop and everything should return to normal.